xref: /netbsd-src/sys/arch/pmax/include/psl.h (revision 38023541164cff097d5fadec63134189b1453b8c)
1 /*
2  * Copyright (c) 1992 Regents of the University of California.
3  * All rights reserved.
4  *
5  * This code is derived from software contributed to Berkeley by
6  * Ralph Campbell.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. All advertising materials mentioning features or use of this software
17  *    must display the following acknowledgement:
18  *	This product includes software developed by the University of
19  *	California, Berkeley and its contributors.
20  * 4. Neither the name of the University nor the names of its contributors
21  *    may be used to endorse or promote products derived from this software
22  *    without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34  * SUCH DAMAGE.
35  *
36  * from: @(#)psl.h	7.2 (Berkeley) 10/11/92
37  * $Id: psl.h,v 1.1.1.1 1993/10/12 03:22:41 deraadt Exp $
38  */
39 
40 #include <machine/machConst.h>
41 
42 #define	PSL_LOWIPL	(MACH_INT_MASK | MACH_SR_INT_ENA_CUR)
43 
44 #define	PSL_USERSET (	\
45 	MACH_SR_KU_OLD |	\
46 	MACH_SR_INT_ENA_OLD |	\
47 	MACH_SR_KU_PREV |	\
48 	MACH_SR_INT_ENA_PREV |	\
49 	MACH_INT_MASK)
50 
51 #define	PSL_USERCLR (	\
52 	MACH_SR_COP_USABILITY |	\
53 	MACH_SR_BOOT_EXC_VEC |	\
54 	MACH_SR_TLB_SHUTDOWN |	\
55 	MACH_SR_PARITY_ERR |	\
56 	MACH_SR_CACHE_MISS |	\
57 	MACH_SR_PARITY_ZERO |	\
58 	MACH_SR_SWAP_CACHES |	\
59 	MACH_SR_ISOL_CACHES |	\
60 	MACH_SR_KU_CUR |	\
61 	MACH_SR_INT_ENA_CUR |	\
62 	MACH_SR_MBZ)
63 
64 /*
65  * Macros to decode processor status word.
66  */
67 #define	USERMODE(ps)	((ps) & MACH_SR_KU_PREV)
68 #define	BASEPRI(ps)	(((ps) & (MACH_INT_MASK | MACH_SR_INT_ENA_PREV)) \
69 			== (MACH_INT_MASK | MACH_SR_INT_ENA_PREV))
70